JP7416309B1 - skin cosmetics - Google Patents

Abstract

[Problem] A skin cosmetic that contains natural water and solid anti-inflammatory ingredients, has excellent storage stability and a smooth feel when applied, and has little difference in feeling when applied over multiple coats has not yet been developed. In response to the current situation, the purpose of the present invention is to provide a product that contains natural water and solid anti-inflammatory ingredients, has excellent storage stability and a smooth feel when applied, and provides the same feeling of use as the first time even when reapplying. The purpose of this invention is to provide skin cosmetics that can [Solution] Skin cosmetics containing the following components (A), (B), (C), and (D): (A) 10 to 98 mass of natural water with a hardness of 10 to 200 mg/L; %, (B) 0.001 to 10% by mass of a crystalline solid that has a solubility in water at 25°C of 0.5% or more and has an anti-inflammatory effect, (C) a divalent substance having 3 to 6 carbon atoms. 1 to 25% by mass of alcohol and 0.00001 to 0.05% by mass of (D) acidic mucopolysaccharide. [Selection diagram] None

Description

The present invention relates to skin cosmetics used for moisturizing the skin of the face, body, etc.

The water commonly used in skin cosmetics is ion-exchanged water, which is primarily tap water collected from rivers and purified, and impurities such as metal ions are removed using ion-exchange resins. The components removed by the ion exchange resin may include natural moisturizing factors (NMF) such as calcium ions and magnesium ions. NMF plays an important role in maintaining healthy skin, and in addition to mineral salts such as calcium ions and magnesium ions, NMF plays an important role in maintaining healthy skin.In addition to mineral salts such as calcium ions and magnesium ions, NMF also contains amino acids, organic acids such as pyrrolidone carboxylic acid (and its salts), urea, and lactic acid (and its salts). It is known that when the amount of NMF contained in the stratum corneum decreases, the moisturizing function decreases and the skin tends to become dry.

The fact that mineral salts such as calcium ions and magnesium ions are effective in moisturizing the skin is widely recognized in cosmetics using sea mud rich in mineral salts (Patent Document 1). A clay pack containing clay minerals is known as a dosage form that effectively utilizes mineral salts. However, when mineral salts (particularly divalent or higher valent mineral salts) are blended into aqueous skin cosmetics, substances dissolved in water may be combined with each other, producing substances insoluble in water. Therefore, when natural water rich in mineral salts is used in skin cosmetics, the mineral salts contained in the natural water may cause the generation of insoluble matter. Insoluble matter generated in skin cosmetics not only deteriorates the appearance due to precipitation etc., but also causes roughness during application, which may impair the smooth application feeling.

The term "smooth application feeling" refers to a smooth feeling that does not feel rough or creaky when applied to the skin. In order to feel a smooth application, it is important to reduce roughness and squeaks caused by cosmetics, as well as to improve the texture of the skin. If your skin is rough and uneven, it will be difficult to feel a smooth application, whereas if your skin is finely textured and has a smooth surface, it will be easy to feel a smooth application. When skin roughness occurs due to stress or external stimulation, the skin texture becomes rough, so it is important to prevent skin roughness in order to improve the texture, and anti-inflammatory ingredients are known as ingredients that prevent skin roughness.

As anti-inflammatory ingredients, allantoin, dipotassium glycyrrhizinate, tranexamic acid, and niacinamide are widely used in cosmetics. These components are water-soluble solids, and their prevention is a challenge because they precipitate in cosmetics due to storage temperatures such as low or high temperatures, evaporation of water, etc. Various solutions to these problems are known in compositions containing ion-exchanged water, as described in the compositions of Patent Documents 2 to 5. On the other hand, there is no known method for suppressing the precipitation of allantoin, dipotassium glycyrrhizinate, tranexamic acid, and niacinamide in cosmetics containing natural water. In cosmetics containing natural water, mineral salts contained in the natural water may promote the precipitation of allantoin, dipotassium glycyrrhizinate, tranexamic acid, and niacinamide. When these components precipitated, the appearance of the cosmetic deteriorated and the cosmetic did not have a smooth feel when applied.

The smooth application feeling is affected not only by skin conditions such as texture, but also by whether or not the cosmetic is applied to the skin. In other words, there may be a difference in the application feel on skin to which no cosmetic has been applied and the application feeling to skin to which cosmetic has been applied. In general skin care, a combination of lotion, milky lotion, serum, cream, etc. is used, or all-in-one cosmetics are used for the purpose of shortening skin care time or reducing the number of skin care items used. However, applying these cosmetics only once may not provide sufficient moisturizing effect. Therefore, in order to enhance the moisturizing effect, cosmetics are sometimes used by applying them once and then applying them again. When applying multiple coats in this way, the first coat will give a smooth feel, but the second coat may feel sticky due to the cosmetics that have already been applied. There was a desire for cosmetics with small differences in texture.

Japanese Patent Application Publication No. 2001-233722 Japanese Patent Application Publication No. 2016-121092 Japanese Patent Application Publication No. 2018-52914 JP 2019-199468 Publication JP2022-82669A

The current situation is that a skin cosmetic that contains natural water and solid anti-inflammatory ingredients, has excellent storage stability and a smooth feel when applied, and has little difference in feeling when applied over multiple coats has not yet been developed. In contrast, the purpose of the present invention is to provide a skin cosmetic that contains natural water and solid anti-inflammatory ingredients, has excellent storage stability and a smooth feel when applied, and provides the same feeling of use as the first time even when reapplied. The aim is to provide fees.

In order to solve the above problems, the present inventors conducted extensive research and found that by simply adding a specific alcohol and an acidic mucopolysaccharide to a cosmetic product that contains crystalline anti-inflammatory ingredients in natural water of a specific hardness, The inventors have also found that the coating has excellent storage stability and smooth feel during application, and that the feeling of use remains almost the same even after repeated coatings.After further study, the present invention was completed.

The present invention relates to the following [1] and [2].
[1] Component (A) 10 to 98% by mass of natural water with a hardness of 10 to 200 mg/L, component (B) solubility in water at 25°C of 0.5% or more, and has an anti-inflammatory effect. 0.001 to 10% by mass of crystalline solid, 1 to 25% by mass of component (C) dihydric alcohol having 3 to 6 carbon atoms, and 0.00001 to 0.05% by mass of component (D) acidic mucopolysaccharide. Contains skin cosmetics.
[2] Component (E) The skin cosmetic according to [1] above, containing 0.01 to 10% by mass of an alkylene oxide derivative represented by the following formula (1):

In formula (1), Z is a residue obtained by removing all the hydroxyl groups from a compound having 1 to 7 carbon atoms and 1 to 4 hydroxyl groups.
x represents an integer from 1 to 4. EO is an oxyethylene group. PO is an oxypropylene group. BO is an oxybutylene group.
a is the average number of added moles of the oxyethylene group, 0≦a≦100, b is the average number of added moles of the oxypropylene group, 0≦b≦60, and c is the oxybutylene group. The average number of moles added is 0≦c≦5. However, a, b and c are not 0 at the same time. When both a and b are not 0, (a/b) is 1/5 to 7/1. Furthermore, EO, PO, and BO may be added randomly or in blocks, or random portions and block portions may be mixed.

According to the present invention, there is provided a skin cosmetic that contains natural water and a crystalline solid anti-inflammatory component, has excellent storage stability and smooth feel when applied, and has no change in feeling when applied even when applied repeatedly. be able to.

Embodiments of the present invention will be described below.
The present invention relates to a skin cosmetic containing the above-mentioned component (A), component (B), component (C) and component (D) in a specific ratio (hereinafter also referred to as the skin cosmetic of the present invention).
In the present invention, "skin cosmetics" refers to cosmetics that are applied by directly or indirectly applying or spraying on the skin, and specifically include basic cosmetics such as lotions, milky lotions, creams, foundations, etc. Examples include finishing (makeup) cosmetics, fragrance cosmetics, and medicinal cosmetics (quasi-drugs). Among these, basic cosmetics and medicated cosmetics for keeping the skin clean and healthy are preferred.
In addition, in this specification, the numerical range defined using the symbol "~" shall include the numerical values at both ends (upper limit and lower limit) of "~". For example, "2-5" represents 2 or more and 5 or less.

<Component (A): Natural water with hardness of 10 to 200 mg/L>
Component (A) used in the present invention is natural water with a hardness of 10 mg/L to 200 mg/L calculated from the content of calcium salts and magnesium salts.
Natural water is not particularly limited as long as it has the above-mentioned specific hardness, and includes, for example, shallow well water, deep well water, and water classified under ``2. Examples include well water, spring water, mineral spring water, hot spring water, underground water, and mineral water. These natural waters may be used alone or in combination of two or more. Further, these natural waters may be used as they are, or may be subjected to filter sterilization, heat sterilization, ozone sterilization, ultraviolet sterilization, etc. after being sampled.

Hardness in the present invention is calculated by converting the amount of calcium and magnesium into the amount of calcium carbonate (CaCO ₃ ), expressed in [mg/L], and can be calculated using the following simple formula (2). (Atomic weight: Ca=40, Mg=24.3, molecular weight: CaCO ₃ =100).
Hardness [mg/L] = (Calcium amount [mg/L] x 2.5) + (Magnesium amount [mg/L] x 4.1)... (2)

In the present invention, component (A) has a hardness calculated from the above formula (2) within the range of 10 mg/L to 200 mg/L, preferably 15 mg/L to 150 mg/L, and more preferably It is 20 mg/L to 100 mg/L. If the hardness is less than 10 mg/L, the smooth feel during application may be insufficient, or there may be a large difference in the feel upon repeated application. If the hardness exceeds 200 mg/L, the stability at low and high temperatures may decrease, and the smooth feel during application may be insufficient.
Note that the difference in the feeling of use refers to the difference in the feeling of smoothness and non-stickiness compared to when the product is first applied to the skin. Therefore, a small difference in feel means that the rate of change in feel is small (almost the same) compared to when it is applied for the first time, and a large difference in feel means that compared to when it is applied for the first time. This means that the rate of change in feel is large (decrease in smooth feel and increase in stickiness).

The content of component (A) is 10 to 98% by mass, preferably 20 to 95% by mass, and more preferably 30 to 90% by mass, based on the total amount of the skin cosmetic. If the content of component (A) is less than 10% by mass, the smooth feel upon application may be insufficient, or the difference in feel upon repeated application may be large. If the content of component (A) exceeds 98% by mass, no effect commensurate with the amount blended will be obtained.

<Component (B): Crystalline solid having a solubility in water of 0.5% or more at 25°C and having an anti-inflammatory effect>
Component (B) used in the present invention is a crystalline solid that has a solubility in water of 0.5% or more at 25° C. and has an anti-inflammatory effect. When 0.5 g of a crystalline solid dissolves in 100 g of water, the solubility of the crystalline solid in water is defined as 0.5%.
Further, the upper limit is preferably 200% or less, more preferably 100% or less.

Examples of crystalline solids that have a solubility in water at 25°C of 0.5% or more and have anti-inflammatory effects include allantoin (solubility 0.5%), dipotassium glycyrrhizinate (solubility 1%), and tranexam. Examples include acid (solubility 16%), niacinamide (solubility 100%), and the like.

Component (B) may be used alone or in combination of two or more. It is preferable to use two or more types together, and when two or more types are used in combination, it is preferable to use a combination of one type selected from allantoin and dipotassium glycyrrhizinate and one type selected from tranexamic acid and niacinamide.

The content of component (B) is 0.001 to 10% by mass, preferably 0.005 to 8% by mass, more preferably 0.01 to 7% by mass, especially Preferably it is 0.05 to 6% by mass. When allantoin or dipotassium glycyrrhizinate is included as component (B), from the viewpoint of stability at low and high temperatures, the content of allantoin or dipotassium glycyrrhizinate is preferably 0.005% based on the total amount of the skin cosmetic. ~0.5% by weight, more preferably 0.01~0.4% by weight, particularly preferably 0.05~0.3% by weight.

If the content of component (B) is less than 0.001% by mass, the smooth feel during application may be insufficient. When the content of component (B) exceeds 10% by mass, stability at low and high temperatures may decrease.

<Component (C): Dihydric alcohol having 3 to 6 carbon atoms>
Component (C) used in the present invention is a dihydric alcohol having 3 to 6 carbon atoms. Examples of dihydric alcohols having 3 to 6 carbon atoms include 1,2-propanediol, 1,3-propanediol, 1,3-butanediol, 1,4-butanediol, and 1,2-pentanediol. , 1,2-hexanediol, dipropylene glycol and the like. Among these, 1,3-propanediol, 1,3-butanediol and 1,2-pentanediol are preferred, and 1,3-propanediol and 1,3-butanediol are more preferred.

Component (C) may be used alone or in combination of two or more.
The content of component (C) is 1 to 25% by mass, preferably 2 to 20% by mass, and more preferably 3 to 15% by mass, based on the total amount of the skin cosmetic. If the content of component (C) is less than 1% by mass, the stability at low and high temperatures may decrease, the smooth feel during application may be insufficient, or the difference in the feeling of use may occur when recoating. It may be large. If the content of component (C) exceeds 25% by mass, the smooth feel upon application may be insufficient, or the difference in feel upon application may be large.

<Component (D): Acidic mucopolysaccharide>
Component (D) used in the present invention is an acidic mucopolysaccharide, such as hyaluronic acid, chondroitin-4-sulfate, chondroitin-6-sulfate, dermatan sulfate, keratan sulfate, heparin, etc. Examples include salts and acetylated products. Preferred are hyaluronic acid, chondroitin-4-sulfate, chondroitin-6-sulfate, and salts and acetylated products thereof, particularly preferred are hyaluronic acid and salts and acetylated products thereof, and most preferred are salts of hyaluronic acid. .

Examples of acidic mucopolysaccharide salts include inorganic salts and organic salts; examples of inorganic salts include alkali metal salts such as sodium salts and potassium salts; examples of organic salts include quaternary ammonium salts. . The acidic mucopolysaccharide salt is preferably a sodium salt or a potassium salt.

A commercially available product can be used as the acidic mucopolysaccharide. Commercially available products include, for example, sodium hyaluronate products such as "Hyaluronic acid liquid HA-LQH1P" manufactured by Kewpie Corporation, "Hyaluronic acid FCH-200" manufactured by Kikkoman Biochemifa Co., Ltd., and "Hyaluronic acid FCH-200" manufactured by Maruha Nichiro Foods Co., Ltd. Examples of low-molecular-weight hyaluronic acid include "Hyalooligo" manufactured by Kewpie Co., Ltd., and the like.

Component (D) may be used alone or in combination of two or more.
The content of component (D) is 0.00001 to 0.05% by mass, preferably 0.0001 to 0.04% by mass, more preferably 0.0005 to 0.00% by mass, based on the total amount of the skin cosmetic. It is .03% by mass. If it is less than 0.00001% by mass, the stability at low and high temperatures may decrease, and the smooth feel during application may be insufficient. If the amount exceeds 0.05% by mass, there may be a large difference in the feeling of use when multiple coats are applied.

<Component (E): Alkylene oxide derivative>
Component (E) used in the present invention is an alkylene oxide derivative represented by the following formula (1).

In formula (1), Z is a residue obtained by removing all the hydroxyl groups from a compound having 1 to 7 carbon atoms and 1 to 4 hydroxyl groups.

x represents an integer from 1 to 4. EO is an oxyethylene group. PO is an oxypropylene group. BO is an oxybutylene group.

a is the average number of added moles of the oxyethylene group, 0≦a≦100, b is the average number of added moles of the oxypropylene group, 0≦b≦60, and c is the oxybutylene group. The average number of moles added is 0≦c≦5. However, a, b and c are not 0 at the same time. When both a and b are not 0, (a/b) is 1/5 to 7/1. Furthermore, EO, PO, and BO may be added randomly or in blocks, or random portions and block portions may be mixed.

The alkylene oxide derivative represented by formula (1) can be produced by a known method. That is, ethylene oxide, propylene oxide, and butylene oxide are suitably addition-polymerized to the hydroxy compound (Z(OH) _x ). The order of addition of each monomer during addition polymerization can be determined depending on the desired structure. Moreover, commercially available alkylene oxide derivatives can also be used.

The content of component (E) is preferably 0.01 to 10% by mass, more preferably 0.05 to 8% by mass, and even more preferably 0.1 to 5% by mass, based on the total amount of the skin cosmetic. be. When the content of component (E) is within the above range, the stability at low and high temperatures is improved, and the difference in the feeling of use when overcoating is reduced.

From the viewpoint of improving the smooth feel during application, the content ratio (A)/(C) of component (A) and component (C) is preferably 4 to 25 in terms of mass ratio, and 5 to 20. It is more preferable that the number is 6 to 15, and particularly preferably 6 to 15.

The skin cosmetic of the present invention may contain ordinary water in addition to component (A). Ordinary water refers to ion-exchanged water or distilled water used in ordinary skin cosmetics, which substantially does not contain minerals and has a hardness of 0 mg/L or less than 1 mg/L. Furthermore, when a commercially available product in the form of an aqueous solution or aqueous dispersion of acidic mucopolysaccharide is used as component (D), the skin cosmetic of the present invention contains water derived from these products. The water contained in these products is ordinary water such as ion-exchanged water or distilled water, is substantially free of minerals, and has a hardness of 0 mg/L or less than 1 mg/L.

The usual water content in the skin cosmetics of the present invention is preferably 0 to 60% by weight, more preferably 0 to 40% by weight, particularly preferably 0 to 20% by weight.

<Other additive ingredients>
In addition to the above-mentioned components (A) to (E), the skin cosmetic composition of the present invention may further contain general components used in cosmetics as additional components.

Other additive components include, for example, humectants; oils; surfactants; preservatives; thickeners; pH adjusters; antioxidants; sequestrants; fragrances; pigments; pigments; amino acids; ceramides, etc. . The content of other additive components is preferably 40% by mass or less, more preferably 30% by mass or less, based on the total amount of the skin cosmetic.
From the viewpoint of a smooth feel during application, it is preferable to contain a plant extract having an anti-inflammatory effect as another component. Examples of plant extracts having anti-inflammatory effects include aloe vera leaf extract, purslane extract, hamamelis leaf extract, eucalyptus leaf extract, etc. Purslane extract and eucalyptus leaf extract are preferred, and purslane extract and eucalyptus leaf extract are used in combination. It is particularly preferable to do so. The content of the plant extract having an anti-inflammatory effect is preferably 0.0001 to 0.1% by mass, more preferably 0.0005 to 0.05% by mass, and even more preferably 0. It is .001 to 0.01% by mass.

The skin cosmetic of the present invention can be produced by a known method. For example, component (A) is natural water with a hardness of 10 to 200 mg/L, component (B) is a crystalline solid that has a solubility in water at 25°C of 0.5% or more and has an anti-inflammatory effect. , a dihydric alcohol having 3 to 6 carbon atoms as component (C), an acidic mucopolysaccharide as component (D), and an alkylene oxide derivative as component (E) are mixed, and the pH is appropriately adjusted to an optimum value. The skin cosmetic of the present invention can be produced.

The skin cosmetic of the present invention can be made into a liquid, gel, emulsion, cream, or other form, and is used for the face, body, and the like.

Hereinafter, the present invention will be explained in more detail with reference to Examples and Comparative Examples.
<Examples 1 to 23, Comparative Examples 1 to 4>
The skin cosmetics shown in Tables 1, 2 (Examples 1 to 23) and Table 3 (Comparative Examples 1 to 4) were prepared by known methods and evaluated by the following methods.
In Tables 1 to 3, the numerical value of each component indicates the content (% by mass) relative to the total amount of the skin cosmetic. Moreover, (A)/(C) indicates the mass ratio of the content of component (A) to component (C).

Supplementary explanations of the symbols in Table 1 are as follows.
*1 "Natural Water 1" Hardness: 150mg/L
*2 “Natural Water 2” Hardness: 50mg/L
*3 "Natural Water 3" Hardness: 25mg/L
*4 "Hyaluronic Sun Liquid HA-LQH1P", manufactured by Kewpie Co., Ltd.; an aqueous solution containing 1% by mass of Na hyaluronate and 0.8% by mass of phenoxyethanol. The content in the table is the content of Na hyaluronate per entire lotion. It is.
*5 "Hyalooligo", manufactured by Kewpie Corporation; hydrolyzed hyaluronic acid *6 "Macbiobride MG-20P", manufactured by NOF Corporation; polyoxypropylene (20 mol) methyl glucoside *7 "Wilbride S-753" , manufactured by NOF Corporation; Polyoxybutylene (3 mol) Polyoxyethylene (8 mol) Polyoxypropylene (5 mol) Glyceryl ether *8 "Wilbride BS-03", manufactured by NOF Corporation; Polyoxyethylene ( 10 moles) polyoxypropylene (7 moles) butyl ether

<Evaluation method>
(1) Evaluation of stability at low temperature and high temperature The state after standing storage at 0° C. and 40° C. for 1 month was confirmed, and the stability was determined as follows.
◎: There was no change in appearance at either 0°C or 40°C, and no separation or precipitates were observed even when the temperature was returned to room temperature.
○: Changes in appearance such as turbidity were observed in either or both of the samples at 0°C and 40°C, but no separation or precipitates were observed when the temperature returned to room temperature.
×: After storage at 0°C and 40°C, separation or precipitates were observed in one or both of the samples when the temperature was returned to room temperature.

(2) Evaluation of smooth feel when applied A panel of 20 women between the ages of 25 and 55 took 1 g of skin cosmetics in the palm of their hands and evaluated the smoothness when applied to the face using the following criteria. .
2 points: When it feels very smooth.
1 point: If it feels smooth.
0 points: If it feels not smooth.

(3) Evaluation of the feeling of use when reapplying A panel of 20 women between the ages of 25 and 55 took 1 g of skin cosmetics in the palm of their hands, applied it to the face, immediately after applying it to the face, took 1 g of the skin cosmetics again in the palm of their hands, and applied it to the face. It was applied to. The difference between the feeling of use during the first application and the feeling of use during the second application was evaluated using the following criteria.
2 points: If you feel that there is almost no difference in smooth feel or lack of stickiness.
1 point: If you feel that there is not much difference in smooth feel or lack of stickiness.
0 points: If you feel that there is a difference in smooth feel or lack of stickiness.

The total scores of each panelist in the evaluations (2) to (3) above were determined based on the following criteria and are shown in Tables 1 to 3, respectively. In addition, "◎" and "○" were judged as passing.
◎: Total score is 35 points or more ○: Total score is 30 points or more and 34 points or less △: Total score is 20 points or more and 29 points or less ×: Total score is 19 points or less

The skin cosmetics of Examples 1 to 23 were all excellent in storage stability and smooth feel upon application, and had little difference in feeling when applied over multiple coats.
On the other hand, in Comparative Examples 1 to 4, sufficient performance was not obtained.
Since Comparative Example 1 did not contain component (A), the smooth feel during application was insufficient, and the difference in the feel upon application was quite large.
Comparative Example 2 did not contain component (B), so the smooth feel during application was insufficient.
Comparative Example 3 did not contain component (C), so it had poor stability at low and high temperatures, insufficient smooth feel during application, and a considerable difference in the feel upon repeated application.
Comparative Example 4 did not contain component (D), so it had poor stability at low and high temperatures, and the smooth feel during application was insufficient.
Next, formulation examples (formulation examples 1 and 2) of the skin cosmetics of the present invention will be shown. The skin cosmetics of these formulation examples were also excellent in storage stability and smooth feel upon application, and showed little difference in feel upon application.

[Formulation example 1] Gel-like skin cosmetic (mass%)
Ingredient (A) Natural water 3:60
Component (B) Dipotassium glycyrrhizinate: 0.1
Component (B) Niacinamide: 5
Component (C) 1,2-pentanediol: 2
Component (C) 1,3-butanediol: 8
Component (D) Hyaluronic acid Na: 0.01
Component (E) Polyoxypropylene (20 mol) Methyl glucoside: 0.1
Component (E) Polyoxyethylene (10 mol) Polyoxypropylene (7 mol) Butyl ether: 1
Glycerin: 5
Diglycerin: 1
Carboxyvinyl polymer: 0.2
Alkyl-modified carboxyvinyl polymer: 0.2
Arginine: 0.2
Polysorbate 80:0.2
PEG-60 hydrogenated castor oil: 0.2
Ethylhexylglycerin: 0.2
Purslane extract: 0.005
Ceramide 3:0.0001
Glutamic acid: 0.001
Serine: 0.001
Proline: 0.001
Alanine: 0.001
Fragrance: Appropriate amount Water: Remaining amount

[Formulation example 2] Emulsion skin cosmetic (mass%)
Ingredient (A) Natural water 3:50
Component (B) Dipotassium glycyrrhizinate: 0.1
Component (C) 1,2-pentanediol: 2
Component (C) 1,3-propanediol: 6
Component (C) dipropylene glycol: 3
Component (D) Hyaluronic acid Na: 0.02
Component (E) Polyoxybutylene (3 mol) Polyoxyethylene (8 mol) Polyoxypropylene (5 mol) Glyceryl ether: 1
Component (E) Polyoxyethylene (10 mol) Polyoxypropylene (7 mol) Butyl ether: 1
Ascorbyl glucoside: 2
Glycerin: 5
Diglycerin: 1
Carboxyvinyl polymer: 0.1
Alkyl-modified carboxyvinyl polymer: 0.1
Arginine: 0.1
Polysorbate 80:0.5
Stearic acid PEG-75: 0.5
Glyceryl stearate: 1
Behenyl alcohol: 1
Olive fruit oil: 6
Cetyl ethylhexanoate: 6
Tocopherol: 0.1
Ethylhexylglycerin: 0.2
Purslane extract: 0.005
Eucalyptus leaf extract: 0.005
Ceramide 3:0.0001
Glutamic acid: 0.001
Serine: 0.001
Proline: 0.001
Alanine: 0.001
Fragrance: Appropriate amount Water: Remaining amount

INDUSTRIAL APPLICABILITY The present invention can provide a skin cosmetic that contains natural water and anti-inflammatory ingredients, has excellent storage stability and a smooth feel when applied, and can provide an excellent feel even when layered.

Claims (2)

A skin cosmetic containing the following components (A), (B), (C) and (D) , the mass ratio of the content of component (A) and component (C) (A)/ Skin cosmetics in which (C) is 6 to 15 :
(A) 10-98% by mass of natural water with a hardness of 10-200 mg/L, excluding seawater and seawater-treated products; (B) Solubility in water at 25°C of 0.5% or more, allantoin, 0.001 to 10% by mass of a crystalline solid having an anti-inflammatory effect of one or more selected from the group consisting of dipotassium glycyrrhizinate, tranexamic acid, and niacinamide.
(C) 1 to 25% by mass of dihydric alcohol having 3 to 6 carbon atoms
(D) 0.0001 to 0.04 % by mass of acidic mucopolysaccharide. The skin cosmetic according to claim 1, containing the following component (E):
(E) 0.01 to 10% by mass of an alkylene oxide derivative represented by the following formula (1);
In formula (1), Z is a residue obtained by removing all the hydroxyl groups from a compound having 1 to 7 carbon atoms and 1 to 4 hydroxyl groups,
x represents an integer from 1 to 4. EO is an oxyethylene group. PO is an oxypropylene group. BO is an oxybutylene group,
a is the average number of added moles of the oxyethylene group, 0≦a≦100, b is the average number of added moles of the oxypropylene group, 0≦b≦60, and c is the oxybutylene group. is the average number of moles added, and 0≦c≦5, provided that a, b and c are not 0 at the same time, and when a and b are both not 0, (a/b) is 1/5 to 7/1, and EO, PO, and BO may be added randomly or in blocks, or random portions and block portions may be mixed.